Hayward® Diaphragm Valves

Diaphragm valves are engineered to provide superior handling of difficult media such as corrosive fluids, abrasives, and slurries. They can also be used for high purity and sanitary applications. The valve controls flow by varying the space between a stationary weir and a moveable flexible diaphragm. By compressing the diaphragm against the weir, all flow is shut off. Other diaphragms and materials are available; contact us for a quote.

  • CPVC body
  • PTFE or FPM diaphragm
  • Wetted components are the lower half of the valve body & the diaphragm
  • Large, sure-grip handwheel makes it easy to open or close the valve
  • The beacon-type indicator provides a highly visible position indication
  • Stroke adjustment allows precise "tweaking" of diaphragm movement for exact flow control
  • Pressure rating: 150 psi @ 70°F, non-shock
  • Temperature rating: 190°F
Item # Description Catalog Pg. Price Add to Cart
1/2" True Union CPVC Hayward® DAB Series Diaphragm Valve w/FPM Diaphragm
Item 19538
474.87/Each
Save 5% when you buy 2+
Save 10% when you buy 4+
Save 15% when you buy 12+
Internet Only
474.87/Each
3/4" True Union CPVC Hayward® DAB Series Diaphragm Valve  w/FPM Diaphragm
Item 19540
512.05/Each
Save 5% when you buy 2+
Save 10% when you buy 4+
Save 15% when you buy 12+
Internet Only
512.05/Each
1" True Union CPVC Hayward® DAB Series Diaphragm Valve w/FPM Diaphragm
Item 19543
630.75/Each
Save 5% when you buy 2+
Save 10% when you buy 4+
Save 15% when you buy 12+
Internet Only
630.75/Each
1-1/4" True Union CPVC Hayward® DAB Series Diaphragm Valve  w/FPM Diaphragm
Item 19545
912.49/Each
Save 5% when you buy 2+
Save 10% when you buy 4+
Save 15% when you buy 12+
Internet Only
912.49/Each
1-1/2" True Union CPVC Hayward® DAB Series Diaphragm Valve w/FPM Diaphragm
Item 19546
912.49/Each
Save 5% when you buy 2+
Save 10% when you buy 4+
Save 15% when you buy 12+
Internet Only
912.49/Each
2" True Union CPVC Hayward® DAB Series Diaphragm Valve w/FPM Diaphragm
Item 19547
991.14/Each
Save 5% when you buy 2+
Save 10% when you buy 4+
Save 15% when you buy 12+
Internet Only
991.14/Each
1/2" True Union CPVC Hayward® DAB Series Diaphragm Valve  w/PTFE Diaphragm
Item 19549
539.59/Each
Save 5% when you buy 2+
Save 10% when you buy 4+
Save 15% when you buy 12+
Internet Only
539.59/Each
3/4" True Union CPVC Hayward® DAB Series Diaphragm Valve  w/PTFE Diaphragm
Item 19550
573.96/Each
Save 5% when you buy 2+
Save 10% when you buy 4+
Save 15% when you buy 12+
Internet Only
573.96/Each
1" True Union CPVC Hayward® DAB Series Diaphragm Valve w/PTFE Diaphragm
Item 19553
687.71/Each
Save 5% when you buy 2+
Save 10% when you buy 4+
Save 15% when you buy 12+
Internet Only
687.71/Each
1-1/4" True Union CPVC Hayward® DAB Series Diaphragm Valve w/PTFE Diaphragm
Item 19554
1082.88/Each
Save 5% when you buy 2+
Save 10% when you buy 4+
Save 15% when you buy 12+
Internet Only
1082.88/Each
1-1/2" True Union CPVC Hayward® DAB Series Diaphragm Valve  w/PTFE Diaphragm
Item 19555
1092.52/Each
Save 5% when you buy 2+
Save 10% when you buy 4+
Save 15% when you buy 12+
Internet Only
1092.52/Each
2" True Union CPVC Hayward® DAB Series Diaphragm Valve w/PTFE Diaphragm
Item 19556
1134.14/Each
Save 5% when you buy 2+
Save 10% when you buy 4+
Save 15% when you buy 12+
Internet Only
1134.14/Each
1/2" Flanged CPVC Hayward® DAB Series Diaphragm Valve w/FPM Diaphragm
Item 19571
465.22/Each
Save 5% when you buy 2+
Save 10% when you buy 4+
Save 15% when you buy 12+
Internet Only
465.22/Each
3/4" Flanged CPVC Hayward® DAB Series Diaphragm Valve w/FPM Diaphragm
Item 19572
520.97/Each
Save 5% when you buy 2+
Save 10% when you buy 4+
Save 15% when you buy 12+
Internet Only
520.97/Each
1" Flanged CPVC Hayward® DAB Series Diaphragm Valve w/FPM Diaphragm
Item 19573
651.04/Each
Save 5% when you buy 2+
Save 10% when you buy 4+
Save 15% when you buy 12+
Internet Only
651.04/Each
1-1/4" Flanged CPVC Hayward® DAB Series Diaphragm Valve w/FPM Diaphragm
Item 19574
1004.9/Each
Save 5% when you buy 2+
Save 10% when you buy 4+
Save 15% when you buy 12+
Internet Only
1004.9/Each
1-1/2" Flanged CPVC Hayward® DAB Series Diaphragm Valve w/FPM Diaphragm
Item 19575
1004.9/Each
Save 5% when you buy 2+
Save 10% when you buy 4+
Save 15% when you buy 12+
Internet Only
1004.9/Each
2" Flanged CPVC Hayward® DAB Series Diaphragm Valve w/FPM Diaphragm
Item 19577
1170.02/Each
Save 5% when you buy 2+
Save 10% when you buy 4+
Save 15% when you buy 12+
Internet Only
1170.02/Each
2-1/2" Flanged CPVC Hayward® DAB Series Diaphragm Valve w/FPM Diaphragm
Item 19578
1705.65/Each
Save 5% when you buy 2+
Save 10% when you buy 4+
Save 15% when you buy 12+
Internet Only
1705.65/Each
3" Flanged CPVC Hayward® DAB Series Diaphragm Valve w/FPM  Diaphragm
Item 19579
4142.15/Each
Save 5% when you buy 2+
Save 10% when you buy 4+
Save 15% when you buy 12+
Internet Only
4142.15/Each
4" Flanged CPVC Hayward® DAB Series Diaphragm Valve w/FPM Diaphragm
Item 19580
3513.45/Each
Save 5% when you buy 2+
Save 10% when you buy 4+
Save 15% when you buy 12+
Internet Only
3513.45/Each
1/2" Flanged CPVC Hayward® DAB Series Diaphragm Valve w/PTFE Diaphragm
Item 19581
569.73/Each
Save 5% when you buy 2+
Save 10% when you buy 4+
Save 15% when you buy 12+
Internet Only
569.73/Each
3/4" Flanged CPVC Hayward® DAB Series Diaphragm Valve w/PTFE Diaphragm
Item 19582
630.75/Each
Save 5% when you buy 2+
Save 10% when you buy 4+
Save 15% when you buy 12+
Internet Only
630.75/Each
1" Flanged CPVC Hayward® DAB Series Diaphragm Valve w/PTFE Diaphragm
Item 19583
790.29/Each
Save 5% when you buy 2+
Save 10% when you buy 4+
Save 15% when you buy 12+
Internet Only
790.29/Each
1-1/4" Flanged CPVC Hayward® DAB Series Diaphragm Valve w/PTFE Diaphragm
Item 19584
994.84/Each
Save 5% when you buy 2+
Save 10% when you buy 4+
Save 15% when you buy 12+
Internet Only
994.84/Each
1-1/2" Flanged CPVC Hayward® DAB Series Diaphragm Valve w/PTFE Diaphragm
Item 19585
1169.6/Each
Save 5% when you buy 2+
Save 10% when you buy 4+
Save 15% when you buy 12+
Internet Only
1169.6/Each
2" Flanged CPVC Hayward® DAB Series Diaphragm Valve w/PTFE Diaphragm
Item 19586
1324.45/Each
Save 5% when you buy 2+
Save 10% when you buy 4+
Save 15% when you buy 12+
Internet Only
1324.45/Each
2-1/2" Flanged CPVC Hayward® DAB Series Diaphragm Valve w/PTFE Diaphragm
Item 19587
2412.32/Each
Save 5% when you buy 2+
Save 10% when you buy 4+
Save 15% when you buy 12+
Internet Only
2412.32/Each
3" Flanged CPVC Hayward® DAB Series Diaphragm Valve w/PTFE Diaphragm
Item 19588
2951.07/Each
Save 5% when you buy 2+
Save 10% when you buy 4+
Save 15% when you buy 12+
Internet Only
2951.07/Each
4" Flanged CPVC Hayward® DAB Series Diaphragm Valve w/PTFE Diaphragm
Item 19589
4182.52/Each
Save 5% when you buy 2+
Save 10% when you buy 4+
Save 15% when you buy 12+
Internet Only
4182.52/Each